Polycarbonate is a strong thermoplastic resin that gets its name from the CO3 groups inside it. Can be synthesized from bisphenol A and oxychlorocarbon. The most commonly used method is the melt transesterification method (bisphenol A and diphenyl carbonate are synthesized through transesterification and polycondensation reaction).
PC is a linear carbonic polyester. The carbonic acid groups in the molecule are alternately arranged with other groups. These groups can be aromatic, aliphatic, or both. Bisphenol A type PC is the most important industrial product.
Unlike PVC, PVC is a polymer formed by polymerizing vinyl chloride monomer with initiators such as peroxides and azo compounds, or under the action of light and heat according to a free radical polymerization reaction mechanism. Vinyl chloride homopolymer and vinyl chloride polymer are collectively called vinyl chloride resin.
Differences:
1. Different uses of plastics
PVC is polyvinyl chloride plastic, which is a general-purpose plastic and is hard (no plasticizer is added) PVC products are commonly used as plastic doors and windows, water pipes, wiring pipes, sheets, etc. Soft (plasticizer added) PVC products are commonly used in films, soft boards, sheets, hoses, and medical products (such as infusion bags, etc.).
2. Different application fields
The three major application fields of PC as an engineering plastic are the glass assembly industry, the automotive industry and the electronics and electrical appliances industry, followed by industrial machinery parts, optical discs, Packaging, computer and other office equipment, medical and health care, films, leisure and protective equipment, etc.
PC can be used as door and window glass. PC laminates are widely used in protective windows in banks, embassies, detention centers and public places. They are used in aircraft cabin covers, lighting equipment, industrial safety baffles and Bulletproof glass.
3. Different hardnesses
Polyvinyl chloride is the second-largest general-purpose plastic in terms of output and the most widely used plastic. PVC itself is also a colorless and transparent hard material. , but it is much more brittle than PC, its transparency is not as good as PC, and its other mechanical properties are also far from PC. But PVC can be made into soft PVC by adding a lot of plasticizers.
Baidu Encyclopedia-Polycarbonate
Baidu Encyclopedia-Polyvinyl Chloride